1/* crypto/des/ecb_enc.c */ 2/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@mincom.oz.au). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@mincom.oz.au). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@mincom.oz.au)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59#include "des_locl.h" 60#include "spr.h" 61 62char *libdes_version="libdes v 4.01 - 13-Jan-1997 - eay"; 63char *DES_version="DES part of SSLeay 0.6.6 14-Jan-1997"; 64 65char *des_options() 66 { 67 static int init=1; 68 static char buf[32]; 69 70 if (init) 71 { 72 char *ptr,*unroll,*risc,*size; 73 74 init=0; 75#ifdef DES_PTR 76 ptr="ptr"; 77#else 78 ptr="idx"; 79#endif 80#if defined(DES_RISC1) || defined(DES_RISC2) 81#ifdef DES_RISC1 82 risc="risc1"; 83#endif 84#ifdef DES_RISC2 85 risc="risc2"; 86#endif 87#else 88 risc="cisc"; 89#endif 90#ifdef DES_UNROLL 91 unroll="16"; 92#else 93 unroll="4"; 94#endif 95 if (sizeof(DES_LONG) != sizeof(long)) 96 size="int"; 97 else 98 size="long"; 99 sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size); 100 } 101 return(buf); 102 } 103 104 105void des_ecb_encrypt(input, output, ks, encrypt) 106des_cblock (*input); 107des_cblock (*output); 108des_key_schedule ks; 109int encrypt; 110 { 111 register DES_LONG l; 112 register unsigned char *in,*out; 113 DES_LONG ll[2]; 114 115 in=(unsigned char *)input; 116 out=(unsigned char *)output; 117 c2l(in,l); ll[0]=l; 118 c2l(in,l); ll[1]=l; 119 des_encrypt(ll,ks,encrypt); 120 l=ll[0]; l2c(l,out); 121 l=ll[1]; l2c(l,out); 122 l=ll[0]=ll[1]=0; 123 } 124 125